There is a significant amount of news lately that indicates that the price has a very good chance of going quite high, and it’s good you’re mindful that the price can also fall from here. The probability of both of those happening is high over time. Time is what this gets down to, And you being aware enough of when the time comes to make decisions to move, And where to go.
Ok, what to do with the heat of the batteries? Some sort of heat exchanger would need inclusion on this storage system to not waste the heat byproduct. Replacing gas/electric water heaters would be one option if enough heat is generated to do so, or it could supplement existing systems as preheating energy. Same for HVAC, depending on the season/location.